Dwarfs

Four dwarfs would prepare firewood for Snow White in580 minutes. After an hour and a half they recruit friends so that finished preparing the wood for 280 minutes. How many dwarfs they recruited?

Result

x =  3

Solution:


1.5*60*4 + 280*(x+4) = 580*4

280x = 840

x = 3

Calculated by our simple equation calculator.








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To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

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